Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 4.936 IF 4.936
  • IF 5-year value: 5.615 IF 5-year
    5.615
  • CiteScore value: 4.94 CiteScore
    4.94
  • SNIP value: 1.612 SNIP 1.612
  • IPP value: 4.70 IPP 4.70
  • SJR value: 2.134 SJR 2.134
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 107 Scimago H
    index 107
  • h5-index value: 63 h5-index 63
Discussion papers
https://doi.org/10.5194/hess-2019-294
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-2019-294
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 28 Jun 2019

Submitted as: research article | 28 Jun 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Hydrology and Earth System Sciences (HESS).

The significance of soil properties to the estimation of soil moisture from C-band synthetic aperture radar

John Beale1, Boris Snapir1, Toby Waine1, Jonathan Evans2, and Ronald Corstanje1 John Beale et al.
  • 1School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
  • 2Centre for Ecology & Hydrology, Wallingford OX10 8BB, UK

Abstract. Soil Moisture is a key variable in hydrology, weather and climate modelling. Research has been directed to the estimation of soil moisture over wide areas through a combination of modelling, in-situ measurement and remote sensing to improve the accuracy of hydrological and meteorological forecasting. For monitoring and controlling irrigation and other agricultural purposes, there is also a need to capture local variability. Significant soil moisture differences are observed between and within fields due to land use, soil properties, drainage, tillage, vegetation, solar radiation, air temperature, wind, rain and other factors. Taking the United Kingdom as an example, the average area of agricultural fields is about 12 hectares, requiring a mapping resolution of less than 100 m. Satellite-based remote sensing, including the use of C-band SAR (such as on Sentinel-1), has the potential to satisfy this requirement, but many current data products are aggregated to a spatial resolution of at least 1km and/or provide soil moisture in relative units or indices. Both strategies mitigate the uncertainties introduced by field-scale variability in soil hydrological and vegetation properties. Geospatial datasets of soil properties and land use, crop modelling and other remote sensing techniques may provide an alternative approach to mitigating this variability and allow finer scale products to be produced with acceptable errors. This paper looks at the role of soil properties in the estimation of soil moisture from C-band SAR. We show that information on the soil texture, organic matter content, surface temperature, land use and crop modelling should be important inputs to the success of retrieving soil moisture at the field scale. Previously published data provides guidance in setting soil roughness parameters, based on soil properties, following farming operations such as primary tillage. Beyond soil moisture retrieval, there is exciting potential in SAR remote sensing data to improve the spatial resolution and mapping accuracy of some soil properties.

John Beale et al.
Interactive discussion
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for Authors/Editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
John Beale et al.
John Beale et al.
Viewed  
Total article views: 481 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
390 85 6 481 6 7
  • HTML: 390
  • PDF: 85
  • XML: 6
  • Total: 481
  • BibTeX: 6
  • EndNote: 7
Views and downloads (calculated since 28 Jun 2019)
Cumulative views and downloads (calculated since 28 Jun 2019)
Viewed (geographical distribution)  
Total article views: 345 (including HTML, PDF, and XML) Thereof 343 with geography defined and 2 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 13 Oct 2019
Publications Copernicus
Download
Short summary
Knowledge of soil moisture is important managing their agricultural crops controlling irrigation, predicting flows in rivers and streams, weather forecasting and climate modelling. Synthetic aperture radar (SAR) from satellites can provide wide area coverage on a regular basis. This paper investigates the magnitude of the uncertainties that are influenced by soil properties to evaluate the role of existing soil databases in soil moisture retrieval and interpretation.
Knowledge of soil moisture is important managing their agricultural crops controlling...
Citation